Germany: History of Mainz

Last Friday I got a postcard from Germany.

It is the Chronicle card of Mainz. Mainz was founded as Roman military camp Mogontiacum in BCE 38. In the 7th century it was refounded by the Franconians and when it became the bishop's see of Saint Boniface in 745, it was already a fortified town. In the Middle Ages it reached an economic and cultural heyday. Around 1450 Johannes Gutenberg invented there the mechanical movable type printing. In 1514 Mainz became a electoral residence, which it remained until the French Revolution. In 1806 the city became a part of Prussia and since 1950 it is the capital of the German State of Rhineland-Palatinate. 

Stamp:
Endangered German Whale Species - Porpoise (issued 02-01-2019)

Thank You very much Svea!